Space-time and integral measures of individual accessibility: a comparative analysis using a point-based framework
TLDR
In this paper, the authors compare the relationship and spatial patterns of these thirty accessibility measures using network-based GIS procedures and conclude that space-time and integral indices are distinctive types of accessibility measures which reflect different dimensions of the accessibility experience of individuals.Abstract:
Conventional integral measures of accessibility, although valuable as indicators of place accessibility, have several limitations when used to evaluate individual accessibility. Two alternatives for overcoming some of the difficulties involved are explored in this study. One is to adapt these measures for evaluating individual accessibility using a disaggregate, nonzonal approach. The other is to develop different types of measures based on an alternative conceptual framework. To pursue the former alternative, this study specifies and examines eighteen gravity-type and cumulative-opportunity accessibility measures using a point-based spatial framework. For the latter option, twelve space-time accessibility measures are developed based on the construct of a prism-constrained feasible opportunity set. This paper compares the relationships and spatial patterns of these thirty measures using network-based GIS procedures. Travel diary data collected in Columbus, Ohio, and a digital data set of 10,727 selected land parcels are used for all computation. Results of this study indicate that space-time and integral indices are distinctive types of accessibility measures which reflect different dimensions of the accessibility experience of individuals. Since space-time measures are more capable of capturing interpersonal differences, especially the effect of space-time constraints, they are more “gender sensitive” and helpful for unraveling gender/ethnic differences in accessibility. An important methodological implication is that whether accessibility is observed to be important or different between individuals depends heavily on whether the measure used is capable of revealing the kind of differences the analyst intends to observe.read more
Citations
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Journal ArticleDOI
Integrating Spatial and Aspatial Factors in Measuring Accessibility to Primary Health Care Physicians: A Case Study of Aboriginal Population in Sudbury, Canada
Lu Wang,Travis Tormala +1 more
TL;DR: A methodological framework to combine spatial and aspatial factors to assess the accessibility to primary care physicians and is focused on the aboriginal population within an isolated city, Sudbury, in northern Ontario, Canada.
Journal ArticleDOI
From improvements in accessibility to the impact on territorial cohesion: the spatial approach
Marcin Stępniak,Piotr Rosik +1 more
TL;DR: In this article, the consequences of changes in accessibility for territorial cohesion, analyzed simultaneously in national and international dimensions, are analyzed in a multidimensional evaluation of transport network development, showing that similar spatial patterns and the overall scale of improvement in accessibility lead to entirely different impacts on the level of territorial cohesion.
Book ChapterDOI
The evolving social geography of blogs
TL;DR: In this paper, a spatial science perspective is taken to examine the growth and evolution of blogs using Hagerstrand's time geographic framework, and the results are visualized using UCINET 5 and Pajek.
Operationalizing Time-Space Prism Accessibility in a Building-Level Residential Choice Model: Empirical Results from the Puget Sound Region
TL;DR: In this article, a residential choice model with three main elements of innovation is presented, including the use of time-space prism (TSP) accessibility measure, which the authors believe to be the first application of its kind in a residential decision model, and represented the choice sets in a building-level framework.
Journal ArticleDOI
Balancing time: Using a new accessibility measure in Rio de Janeiro
TL;DR: In this paper, a simple accessibility measure that accounts for competition effects is proposed to assess the inequality in job accessibility in 160 neighborhoods within the city of Rio de Janeiro, and the results are compared with the most popular indicator used in practice, the cumulative opportunities.
References
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TL;DR: In this article, an empirical analysis of the residential development patterns illustrates that accessibility and the availability of vacant developable land can be used as the basis of a residential land use model.
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